Magnetism of low-doped spin chains in Lax(Sr, Ca)14-xCu24O41

被引：8

作者：

Kroll, T

Klingeler, R

Geck, J

Büchner, B

Selke, W

Hücker, M

Gukasov, A

机构：

[1] IFW Dresden, Inst Festkorper & Werkstoffkunde, D-01171 Dresden, Germany

[2] Rhein Westfal TH Aachen, Inst Theoret Phys, D-52056 Aachen, Germany

[3] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

[4] CEA Saclay, Leon Brillouin Lab, F-91191 Gif Sur Yvette, France

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2005年 / 290卷

关键词：

low-dimensional systems; magnetic susceptibility; Monte Carlo simulation; antiferromagnetism-quantum;

D O I：

10.1016/j.jmmm.2004.11.205

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present magnetization data of La-x(Ca, Sr)(14-x)Cu24O41 (x >= 5) in high magnetic fields up to 16T. The data reflect the magnetic response of lightly doped CuO2 spin chains containing <= 10% non-magnetic holes. Our data correspond to a strongly anisotropic magnetic phase diagram. Using Monte-Carlo simulations, we present and analyse a two-dimensional Ising model with mobile holes, describing the experimental observations qualitatively. (c) 2004 Elsevier B.V. All rights reserved.

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页码：306 / 309

页数：4

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